code: def unquote(str):
      """Remove quotes from a string."""
      if len(str) > 1:
          if str.startswith('"') and str.endswith('"'):
              return str[1:-1].replace("\\\\", "\\").replace('\\"', '"')
          if str.startswith("<") and str.endswith(">"):
              return str[1:-1]
      return str
  
imports: import os
  import re
  import time
  import base64
  import random
  import socket
  import urllib
  import warnings
  from email._parseaddr import quote
  from email._parseaddr import AddressList
  from email._parseaddr import mktime_tz
  from email._parseaddr import parsedate
  from email._parseaddr import parsedate_tz
  from quopri import decodestring
  from email.encoders import _bencode, _qencode
label_desc: Use image node_id 11 for calling a global function with example usage: unquote(str) and returns: str, str, str